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Operative simulation of anterior clinoidectomy using a rapid prototyping model molded by a three-dimensional printer

  • Original Article - Neurosurgery Training
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Abstract

Background

As the anatomical three-dimensional (3D) positional relationship around the anterior clinoid process (ACP) is complex, experience of many surgeries is necessary to understand anterior clinoidectomy (AC). We prepared a 3D synthetic image from computed tomographic angiography (CTA) and magnetic resonance imaging (MRI) data and a rapid prototyping (RP) model from the imaging data using a 3D printer. The objective of this study was to evaluate anatomical reproduction of the 3D synthetic image and intraosseous region after AC in the RP model. In addition, the usefulness of the RP model for operative simulation was investigated.

Methods

The subjects were 51 patients who were examined by CTA and MRI before surgery. The size of the ACP, thickness and length of the optic nerve and artery, and intraosseous length after AC were measured in the 3D synthetic image and RP model, and reproducibility in the RP model was evaluated. In addition, 10 neurosurgeons performed AC in the completed RP models to investigate their usefulness for operative simulation.

Results

The RP model reproduced the region in the vicinity of the ACP in the 3D synthetic image, including the intraosseous region, at a high accuracy. In addition, drilling of the RP model was a useful operative simulation method of AC.

Conclusions

The RP model of the vicinity of ACP, prepared using a 3D printer, showed favorable anatomical reproducibility, including reproduction of the intraosseous region. In addition, it was concluded that this RP model is useful as a surgical education tool for drilling.

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Acknowledgements

We thank Chiaki Nishimura, PhD, Professor Emeritus of Toho University, for helping us with the statistical processing. We also thank Kazuhiro Tachiki, RT, at Toho University Medical Center for molding the RP models in this study.

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Authors and Affiliations

  1. Department of Neurosurgery (Omori), Toho University Graduate School of Medicine, 6-11-1, Omori-nishi, Ota-ku, Tokyo, 143-8541, Japan

    Shinichi Okonogi & Nobuo Sugo

  2. Department of Neurosurgery (Omori), School of Medicine, Faculty of Medicine, Toho University School of Medicine, Tokyo, Japan

    Kosuke Kondo, Naoyuki Harada, Hiroyuki Masuda & Masaaki Nemoto

Authors
  1. Shinichi Okonogi
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  2. Kosuke Kondo
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  3. Naoyuki Harada
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  4. Hiroyuki Masuda
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  5. Masaaki Nemoto
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  6. Nobuo Sugo
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Corresponding author

Correspondence to Shinichi Okonogi.

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This article does not contain any studies with human participants performed by any of the authors.

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No funding was received for this research.

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All authors certify that they have no affiliations with or involvement in any organization or entity with any financial interest (such as honoraria; educational grants; participation in speakers’ bureaus; membership, employment, consultancies, stock ownership, or other equity interest; and expert testimony or patent-licensing arrangements), or nonfinancial interest (such as personal or professional relationships, affiliations, knowledge or beliefs) in the subject matter or materials discussed in this manuscript.

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Okonogi, S., Kondo, K., Harada, N. et al. Operative simulation of anterior clinoidectomy using a rapid prototyping model molded by a three-dimensional printer. Acta Neurochir 159, 1619–1626 (2017). https://doi.org/10.1007/s00701-017-3202-4

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  • DOI: https://doi.org/10.1007/s00701-017-3202-4

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